ULTRA! High Performance Lithium-Nickel/Manganese/Cobalt Batteries.These advanced 'Next-Gen' batteries for 2018 are the most energy dense (190Wh/kg), lightest weight, and highest performing (65amp continuous, 100+amp peak) E-bike batteries on the market today at this very affordable low price. The super high current - 100+amps on demand translates to lightning fast acceleration/high torque when used with capable motor systems! It is amazing that batteries this compact can have such a phenomenal performance, long range, and extended lifetime. We also use a very high power BMS (battery management system) to maximize the capability of our cells. Battery packs are ISO9001 certified to maintain high quality standards.

You can also choose power connector for your battery including Male/Female Disconnects , Gray Anderson ,Smaller Red and Black Anderson, and XT90.

WE can make CUSTOM sizes with a variety of specs upon request. Custom sizes require 3-6 weeks to manufacture and deliver depending on requirements.

Comparing LiFePO4 to LiNMCIn spite of the various chemical variations, lithium-ion batteries can generally be separated into two groups: lithium iron phosphate (LFP, LiFePO4) and metal oxides (NMC, NCA, Cobalt, Manganese). Table 1outlines the differences between LFP and LiNMC chemistry classes on a cell level. The values in the table reflect average values as there is variation in each class.

Table 1: Lithium-ion subcategory comparison

LFP

LiNMC

Voltage

3.3 V nominal (3.6 V/cell)

3.7 V nominal (2.7-4.2 V/cell)

Energy Density

300 Wh/L

735 Wh/L

Specific Energy

128 Wh/kg

256 Wh/kg

Power

90 - 120 W/kg

512 W/kg

Cycle Life

1,000 @ 100% DoD

2,000 @ 80% DoD

750 @ 100% DoD

1,900 @ 80% DoD

Calendar Life

6 years

8 years

Max recommended temperature

40°C

55°C

Commercial Suppliers

A123, Valence, BAK, BYD, K2, Lishen, many Chinese vendors

Sanyo, Panasonic, Samsung, DowKokam, Sony, LG Chem, Moli

Important Note Regarding LiNMC Battery CareAll lithium-ion cells are “deep cycle” meaning that they have the ability to be fully charged and discharged. The life of the battery will significantly increase if the depth of each discharge is limited to 80% of the rated capacity.

Comparing LiNMC to Lead AcidTable 2 provides a brief comparison of lead acid to LiNMC on a pack level. It should be noted that both chemistries have a wide range of parameter values, so this table is only a simplified representation of a very complex comparison.Table 2: Battery Technology Comparison

Flooded lead acid

VRLA lead acid

LiNMC

Energy Density (Wh/L)

80

100

250

Specific Energy (Wh/kg)

30

40

256

Regular Maintenance

Yes

No

No

Cycle life

1,200 @ 50% DOD

1,000 @ 50% DoD

1,900 @ 80% DoD

Typical state of charge window

50%

50%

80%

Temperature sensitivity

Degrades significantly above 25°C

Degrades significantly above 25°C

Degrades significantly above 45°C

Efficiency

100% @20-hr rate80% @4-hr rate60% @1-hr rate

100% @20-hr rate80% @4-hr rate60% @1-hr rate

100% @20-hr rate99% @4-hr rate92% @1-hr rate

Voltage increments

2V

2V

3.7V

Figure 1 (from Battery University) compares the specific energy of lead, nickel- and lithium-based systems.While NCA is the clear winner by storing more capacity than other systems, this only applies to specific energy. In terms of specific power and thermal stability, Li-manganese and Li-phosphate are superior. Li-titanate may have low capacity but this chemistry outlives most other secondary batteries in terms of life span. It has also the best cold temperature performance. As we move towards electric powertrains, safety and cycle life are becoming more important than capacity alone.Figure 1: Typical specific energy of lead, nickel- and lithium-based batteries

Keywords Samsung 30Q 18650 cells .Our cells are guaranteed to be authentic.72 VoltsThis is a 72V battery45AhThis pack uses Samsung 30Q 18650 cells which are very energy dense at 3000mah. Give you 3.24kwh